Spaying and neutering
I haven't read through all these many posts, but did view the results of the poll. As a 65 yr. old who has had many dogs throughout my life, most of them rescues, I just want to put in my two cents.
Sparing your dog the turbulence and turmoil of integrating hormones is a great kindness. "Fixing" your dog so he/she cannot breed and does not think about breeding allows your dog to focus on being your companion, on being a good dog, on other activities like guarding your home, your livestock, your garden, being an assistant, learning new things daily. Being spayed and neutered FREES your dog, helps your dog stay healthier, saves you much anxiety and concern.
A male dog separated from his testicles does not become a useless wimp. On the contrary, he becomes a better companion, more trustworthy and reliable.